| alopius | (n) type genus of the family Alopiidae; in some classifications considered a genus of the family Lamnidae, Syn. genus Alopius |
| thresher | (n) large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed, Syn. thrasher, Alopius vulpinus, thresher shark, fox shark |
| Alopius | n. |